Merge "bug 1888 - FRM Flow Listener registration fail"

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / example / ExampleActor.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
index 35a2c98bd420ed56e18319a7388c477ab63bed13..3bfdf732cf01cd3d3898158bc4b8e62585e5a9f5 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
@@ -11,10 +11,22 @@ package org.opendaylight.controller.cluster.example;
 import akka.actor.ActorRef;
 import akka.actor.Props;
 import akka.japi.Creator;
+import com.google.common.base.Optional;
+import com.google.protobuf.ByteString;
 import org.opendaylight.controller.cluster.example.messages.KeyValue;
 import org.opendaylight.controller.cluster.example.messages.KeyValueSaved;
+import org.opendaylight.controller.cluster.example.messages.PrintRole;
+import org.opendaylight.controller.cluster.example.messages.PrintState;
+import org.opendaylight.controller.cluster.raft.ConfigParams;
 import org.opendaylight.controller.cluster.raft.RaftActor;
+import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
+import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -28,30 +40,46 @@ public class ExampleActor extends RaftActor {
     private long persistIdentifier = 1;
 
 
-    public ExampleActor(String id, Map<String, String> peerAddresses) {
-        super(id, peerAddresses);
+    public ExampleActor(String id, Map<String, String> peerAddresses,
+        Optional<ConfigParams> configParams) {
+        super(id, peerAddresses, configParams);
     }
 
-    public static Props props(final String id, final Map<String, String> peerAddresses){
+    public static Props props(final String id, final Map<String, String> peerAddresses,
+        final Optional<ConfigParams> configParams){
         return Props.create(new Creator<ExampleActor>(){
 
             @Override public ExampleActor create() throws Exception {
-                return new ExampleActor(id, peerAddresses);
+                return new ExampleActor(id, peerAddresses, configParams);
             }
         });
     }
 
     @Override public void onReceiveCommand(Object message){
         if(message instanceof KeyValue){
-
             if(isLeader()) {
                 String persistId = Long.toString(persistIdentifier++);
-                persistData(getSender(), persistId, message);
+                persistData(getSender(), persistId, (Payload) message);
             } else {
-                getLeader().forward(message, getContext());
+                if(getLeader() != null) {
+                    getLeader().forward(message, getContext());
+                }
+            }
+
+        } else if (message instanceof PrintState) {
+            if(LOG.isDebugEnabled()) {
+                LOG.debug("State of the node:{} has entries={}, {}",
+                    getId(), state.size(), getReplicatedLogState());
             }
+
+        } else if (message instanceof PrintRole) {
+            if(LOG.isDebugEnabled()) {
+                LOG.debug("{} = {}, Peers={}", getId(), getRaftState(), getPeers());
+            }
+
+        } else {
+            super.onReceiveCommand(message);
         }
-        super.onReceiveCommand(message);
     }
 
     @Override protected void applyState(ActorRef clientActor, String identifier,
@@ -65,6 +93,71 @@ public class ExampleActor extends RaftActor {
         }
     }
 
+    @Override protected void createSnapshot() {
+        ByteString bs = null;
+        try {
+            bs = fromObject(state);
+        } catch (Exception e) {
+            LOG.error("Exception in creating snapshot", e);
+        }
+        getSelf().tell(new CaptureSnapshotReply(bs), null);
+    }
+
+    @Override protected void applySnapshot(ByteString snapshot) {
+        state.clear();
+        try {
+            state.putAll((HashMap) toObject(snapshot));
+        } catch (Exception e) {
+           LOG.error("Exception in applying snapshot", e);
+        }
+        if(LOG.isDebugEnabled()) {
+            LOG.debug("Snapshot applied to state :" + ((HashMap) state).size());
+        }
+    }
+
+    private ByteString fromObject(Object snapshot) throws Exception {
+        ByteArrayOutputStream b = null;
+        ObjectOutputStream o = null;
+        try {
+            b = new ByteArrayOutputStream();
+            o = new ObjectOutputStream(b);
+            o.writeObject(snapshot);
+            byte[] snapshotBytes = b.toByteArray();
+            return ByteString.copyFrom(snapshotBytes);
+        } finally {
+            if (o != null) {
+                o.flush();
+                o.close();
+            }
+            if (b != null) {
+                b.close();
+            }
+        }
+    }
+
+    private Object toObject(ByteString bs) throws ClassNotFoundException, IOException {
+        Object obj = null;
+        ByteArrayInputStream bis = null;
+        ObjectInputStream ois = null;
+        try {
+            bis = new ByteArrayInputStream(bs.toByteArray());
+            ois = new ObjectInputStream(bis);
+            obj = ois.readObject();
+        } finally {
+            if (bis != null) {
+                bis.close();
+            }
+            if (ois != null) {
+                ois.close();
+            }
+        }
+        return obj;
+    }
+
+    @Override protected void onStateChanged() {
+
+    }
+
     @Override public void onReceiveRecover(Object message) {
         super.onReceiveRecover(message);
     }